#4566BB#4566BB

#4566BB is a mid, vivid blue. Relative luminance 0.144; OKLCH L 52.9% C 0.139 H 265.9°. Best body text is #FFFFFF at 5.42:1 contrast (WCAG AA passes).

Color values

HEX	#4566BB
RGB	rgb(69, 102, 187)
HSL	hsl(223, 46%, 50%)
HSV	hsv(223, 63%, 73%)
CMYK	cmyk(63.1%, 45.5%, 0%, 26.7%)
CIE-LAB	lab(44.74, 15.27, -48.46)
CIE-LCH	lch(44.74, 50.81, 287.48°)
OKLab	oklab(52.89% -0.01 -0.1384)
OKLCH	oklch(52.89% 0.139 265.9)
XYZ	xyz(16.1722, 14.3544, 48.9225)
Luminance	0.1436 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4566BB #BB9A45

analogous

#45A1BB #4566BB #5F45BB

triadic

#4566BB #BB4566 #66BB45

tetradic

#4566BB #BB45A1 #BB9A45 #45BB5F

square

#4566BB #BB45A1 #BB9A45 #45BB5F

split-complementary

#4566BB #BB5F45 #A1BB45

monochromatic

#243562 #344D8F #4566BB #728BCB #9FB0DC

Accessibility & contrast

On white

5.42

#4566BB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.87

#4566BB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4566BB

5.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4566BB	#FFFFFF	#000000	##FFFFFF
##4566BB	1.00	5.42	3.87	5.42
#FFFFFF	5.42	1.00	21.00	1.00
#000000	3.87	21.00	1.00	21.00
##FFFFFF	5.42	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3D70BE

Deuteranopia (green-blind)

#2A65B9

Tritanopia (blue-blind)

#007987

Achromatopsia (no color)

#6A6A6A

Design tokens & code

CSS

--color: #4566bb;
/* rgb */ color: rgb(69, 102, 187);
/* oklch */ color: oklch(52.9% 0.139 265.9);

Tailwind

colors: {
  custom: {
    50: '#8491d0',
    500: '#4566bb',
    950: '#000000',
  },
}

SCSS

$custom: #4566bb;
$custom-light: #8491d0;
$custom-dark: #000000;

JSON

{
  "hex": "#4566bb",
  "rgb": {
    "r": 69,
    "g": 102,
    "b": 187
  },
  "hsl": {
    "h": 223.22,
    "s": 46.457,
    "l": 50.196
  },
  "oklch": {
    "l": 0.52892,
    "c": 0.13877,
    "h": 265.9
  },
  "luminance": 0.14356
}

Semantic roles & 50–950 ramp

primary

#4566BB

secondary

#C8BA94

accent

#B152D6

background

#F8F8FC

surface

#F0F0F9

border

#CBCBD2

text

#0C0C14

muted

#7D7D82

Preview Lab

Preview with #4566BB

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →